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//===- llvm/TextAPI/PackedVersion.h - PackedVersion -------------*- C++ -*-===//

//

// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.

// See https://llvm.org/LICENSE.txt for license information.

// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

//

//===----------------------------------------------------------------------===//

//

// Defines the Mach-O packed version format.

//

//===----------------------------------------------------------------------===//

#ifndef LLVM_TEXTAPI_PACKEDVERSION_H

#define LLVM_TEXTAPI_PACKEDVERSION_H

#include <cstdint>

#include <utility>

namespace llvm {

class raw_ostream;

class StringRef;

namespace MachO {

class PackedVersion {

  uint32_t Version{0};

public:

  constexpr PackedVersion() = default;

  explicit constexpr PackedVersion(uint32_t RawVersion) : Version(RawVersion) {}

  PackedVersion(unsigned Major, unsigned Minor, unsigned Subminor)

      : Version((Major << 16) | ((Minor & 0xff) << 8) | (Subminor & 0xff)) {}

  bool empty() const { return Version == 0; }

  /// Retrieve the major version number.

  unsigned getMajor() const { return Version >> 16; }

  /// Retrieve the minor version number, if provided.

  unsigned getMinor() const { return (Version >> 8) & 0xff; }

  /// Retrieve the subminor version number, if provided.

  unsigned getSubminor() const { return Version & 0xff; }

  bool parse32(StringRef Str);

  std::pair<bool, bool> parse64(StringRef Str);

  bool operator<(const PackedVersion &O) const { return Version < O.Version; }

  bool operator==(const PackedVersion &O) const { return Version == O.Version; }

  bool operator!=(const PackedVersion &O) const { return Version != O.Version; }

  uint32_t rawValue() const { return Version; }

  void print(raw_ostream &OS) const;

};

inline raw_ostream &operator<<(raw_ostream &OS, const PackedVersion &Version) {

  Version.print(OS);

  return OS;

}

} // end namespace MachO.

} // end namespace llvm.

#endif // LLVM_TEXTAPI_PACKEDVERSION_H